Choosing a single bed sounds like the easiest decision in the world, until you notice there’s more than one size. Standard single or small single? 90cm or 75cm? It’s a small gap on paper, but it shapes how comfortable the sleeper is and how the whole room feels. The good news: once you know who the bed is for and how much space you have, the answer is usually clear. Here’s everything you need to choose with confidence, and rest easy.
The Simple Difference Between Single Size Beds
Let’s start with the heart of it. A standard single and a small single are identical in length, both 190cm, so the only real difference is how wide they are.
A standard single is 90cm wide. A small single is 75cm wide. That’s a 15cm difference, roughly the width of your hand, and it’s just enough to change who the bed suits and which rooms it fits. Everything else in this guide flows from that one simple fact.
Standard Single: 90cm
The standard single is the classic, most popular single bed size in the UK. It measures 90cm wide by 190cm long (3ft × 6ft 3in), and it’s wonderfully versatile.
Here’s who and what it suits:
- Children and adults alike: wide enough for a grown single sleeper to be genuinely comfortable
- Everyday bedrooms: the go-to size for most children’s rooms, teen rooms, and single adult rooms
- Guest rooms: gives visitors a proper, restful night rather than a squeeze
- Room to stretch: that extra width lets you shift and settle without feeling hemmed in
If the bed is for anyone beyond early childhood, and the room can take it, the standard single is almost always the more comfortable choice. You can see the styles in our range of affordable single beds UK.
Small Single: 75cm
The small single, sometimes called a narrow or cabin single, measures 75cm wide by 190cm long (2ft 6in × 6ft 3in). It’s the narrowest bed we make, and it’s a genuine space-saver.
Here’s where it shines:
- Young children: a lovely “first proper bed” for a little one moving out of a cot.
- Box rooms and loft spaces: fits where a standard single simply won’t leave walking room.
- Guest rooms: a comfortable spare bed that frees up floor space.
- Bunk beds and tight layouts: that 15cm saved can be the difference that makes a room work.
For a small child or a very snug room, a small single is often the smart, space-conscious choice, without giving up any length.
Standard Single vs Small Single: Side by Side Comparison
Sometimes it’s easiest to see the two together. Here’s how they compare at a glance:
| Feature | Standard Single | Small Single |
|---|---|---|
| Width | 90cm (3ft) | 75cm (2ft 6in) |
| Length | 190cm (6ft 3in) | 190cm (6ft 3in) |
| Best for | Children and adults | Young children and tight rooms |
| Room type | Most bedrooms and guest rooms | Box rooms, lofts and bunk beds |
| Comfort for an adult | Comfortable | Snug |
| Space saved | Standard width | 15cm narrower |
The quick read: same length, but the standard single’s extra width means comfort, while the small single’s slimmer frame means space.
Which One Is Right for You?
This is where it gets easy, because the answer usually depends on two simple things: who’s sleeping in it, and how much room you have.
- Choose a standard single: if the bed is for an adult, a teenager, or a guest room where comfort matters, and your room has the floor space. It’s the more restful choice for anyone but a small child.
- Choose a small single: if the bed is for a young child, or the room is genuinely tight, a box room, a loft with sloping eaves, or a bunk setup. It gives back precious floor space without losing length.
If you’re ever unsure and the room allows it, the standard single is the safer bet for long-term comfort, since children grow and guests appreciate the extra room.
The Bedding Detail Most People Miss
Here’s something that catches a lot of people out, so it’s worth a moment. A small single needs its own bedding, standard “single” sheets and fitted covers do not fit a 75cm mattress.
Because the small single is 15cm narrower, a standard single fitted sheet won’t hold its shape on it, and there’s no real workaround. So if you go for a small single, simply buy sheets and mattress protectors labelled for 75cm (2ft 6in) rather than assuming single bedding covers both. Duvets are more forgiving, a single duvet works on both, just with a slightly longer drop on the small single. A tiny detail, but knowing it now saves a frustrating trip back to the shop later.
How Long a Room Do You Need?
A quick measure before you buy means no surprises later, and a room that feels calm rather than crowded. A couple of things to remember:
- The size is the mattress, not the frame: Allow around 5–10cm extra on the width and length for the bed frame and headboard.
- Leave room to move: Aim for comfortable walking space around at least one side and the foot of the bed.
- Think about the whole room: A single (especially a small single) leaves more free wall than any larger bed, which is part of what makes these sizes so lovely in a compact space.
Measure wall to wall, picture the bed in place, and you’ll quickly see which size lets the room breathe.
Choosing Your Single Bed
Here’s the reassuring note to finish on: there’s no wrong choice, only the size that fits your sleeper and your space best. A standard single for comfort, a small single for compact rooms, both offering a proper, restful night’s sleep.
Conclusion
At Zenna Beds, every single bed is handmade in Yorkshire, built to last and finished with the kind of quiet quality that turns a bedroom into a retreat. Whether you need the roomy comfort of a 90cm standard single or the space-saving ease of a 75cm small single, we’ll help you find the one you’ll love sinking into. Explore our modern single beds to find yours.
Frequently Asked Questions
What is the standard single bed size in the UK?
A standard UK single bed is 90cm wide by 190cm long (3ft × 6ft 3in). It’s the most common single size, comfortable for children and adults alike, and fits most bedrooms and guest rooms.
Is a 75cm bed still classed as a single?
Yes. A 75cm bed is a small single, the narrowest single size in the UK. It’s a genuine single bed, just 15cm narrower than a standard single, and shares the same 190cm length.
Will a small single bed suit an adult comfortably?
It can work for short stays or petite adults, but at 75cm wide it’s snug for a grown sleeper. For an adult’s main bed, a 90cm standard single is the more comfortable choice where the room allows.
How much room space do I need for a standard single bed?
Allow for the 90cm × 190cm mattress plus 5–10cm for the frame, with comfortable walking space around at least one side and the foot. Aim for room to move without feeling cramped.
Can I get a mattress to fit a 75cm small single frame?
Yes. Small single mattresses are made specifically at 75cm × 190cm to fit these frames. Just remember to buy bedding labelled for 75cm (2 ft 6in), as standard single sheets won’t fit.


